Revolving-door structure.



No. 64|,563. Patented lan. I6, |900.

Y T.VAN KANNEL.

REVOLVING' DOOR STRUCTURE.

(Application filed Sept. 18, 1899.) (No Modell.) 4 Sheefs-She I.

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No. 64|,5e3. f Patented 1an. le, |900;

T. vAN KANNEL. l REVOLVING DOOR STRUCTURE.

(Application filed Sept. 18, 1899.)

4 Sheets-Sheet 2.

No Model.)

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, Patented lan. I6, i900. T. VAN KANNEL.`

BEVOLVING DOOR STRUCTURE.

(Application filed Sept. 18, 1899A 4 Sheets-Sheet 3,I

(No Model.)

No. v644,563. Patented 1an. I6, |900. T. VAN KANNEL.

BEVLVING DOOR STRUCTURE.

(Application led Sept. 18. 1899,)

(N0 Model.) 4 Sheets-Sheei 4` Nrrnn- STATES Paramv Fries..

REvoLviNc-DOOR STRUCTURE.

SPECIFICATION forming part of Letters Patent No. 641,563, dated January1G, v1900.

Application filed September 18, 1899. Serial No. 730.884. (No model.)

T0 ctZZ whom, it may concern:

Be it known that I, THEoPHILUs VAN KAN- NEL, a citizen of the UnitedStates, anda resident of New York city, New York, have invented certainImprovements in Revolving- Door Structures, of which the following is aspecification.

My invention consists of certain improvements in revolving storm-doorsof the character shown in my previous patents, Nos. 387,571, 588,620,and 588,888, the object of my present improvements being to providesimple and efficient means for retaining the wings of the door in theirproper positions in respect to each other when the door is in use,

but permitting the wings to be folded and the wing structure to be movedover to one side of the casing when direct ingress or egress is desired.This object I attain in the manner hereinafter set forth, referencebeing had to the accompanying drawings, in which- Figure 1 is a view,partly in side elevation and partly in section, of a storm-doorstructure embodying my present improvements. Fig. 2 is a view of thesame partly in top or plan view and partly in sectional plan. Fig. 3 isan enlarged sectional view of the upper pivot and carrier structure forthe door. Fig. 4 is a sectional view of the lower pivot structure. Fig.5 is a sectional plan view of the door, showing one of the movable Wingsextended and the other closed. Fig. 6 is a similar View illustrating aspecial feature of the invention, and Fig. 7 is a sectional view showingthe mode of locking the door.

Referring first to Figs. 1 and 2, it will be observed that the rotatingstructure of the door has four wings 1, 2, 3, and 4, the wings 1 and 2being fixed and the wings 3 and 4 being hinged, so that they can befolded over against the wings 1 and 2, respectively, and the wholestructure can then be moved over to one side of the casing 5, as shownby dotted lines in Fig. 2.

In order to effectually brace the Wings 3 and 4 Awhen they are extended,and yet permit them to'be readily folded, I use chains 6, one of saidchains running from an att-aching-stud 7 on the wing 1 to anattaching-stud 8 on the wing 2, and passing in its course over a block9, adjustable longitudinally in a slot in the wing 3, while the otherchain 6 passes from one attaching-stud 7 to the other stud 8 over asimilarly-adjustable block 9, adapted to a slot in the wing 4, as shownin Fig. 5.

When the wing is extended, a lug 10 on one of the links of the chain 6is, as shown on the left-hand side of Fig. 5, engaged bya trigger 11,hung to a suitable bearing in the casing 12, which closes the slot inthe wing of the door, said trigger preventing an y movement of the wingin the direction ot' the arrow necessary to close it, and the triggerbeing held in engagement with said locking-lug 10 by the action of aspring 13.

Extending from the trigger through a slot in the casing 12, however, isafinger 14, whereby the trigger may be retracted so as to release thelocking-lug 10 when it is desired to fold the hinged Wing against thefixed Wing, as shown at the upper right-hand side of Fig. 5, the slackof the chain being taken up and caused to fold in between the fixed andswinging wings by reason of the engagement of one plate of the casing 12with a lug 15 on one of the links of the chain. Instead of using thislatter construction, however, I may use a swinging arm 16, Fig. 6, hungto the lixed wing of the door and adapted to close into a recess 17therein when the swinging wing is folded, as shown at the upperrighthand side of Fig. 6, the arm being drawn outward, however, so'as toform a practical continuation of the chain, as shown at the bottom ofFig. 6, when the swinging wing of the door is extended.

The adjustment of the block 9 serves to insure the maintenance of thechain 6 in a perfectly tight condition when the wing is extended so thatsaid chain acts as a brace for the win g. Ad j nstment of the block iseffected by means of a screw 18, adapted to a threaded opening in theblock and having a head bearing against a plate or Washer at the endofthe recess in the swinging wing of the door.

The rotating portion of the door is hung t o a central post 20, Fig. 3,which extends through the ceiling 21 ot' the fixed or casing structureand is threaded at the upper end for the reception of a hanger-block 22,the lower end of which has a conical recess for-adaptation to a conicalblock 23 of Babbitt metal or IOO other antifriction material which issupported upon the bottom of asubstantially hemispherical cup 24,mounted so as to be free to swing in all directions in a socket 25,forming part of a truck 26, which has wheels 27, running on rails formedby transverse girders 28, which are mounted above the ceiling structureof the door.

The hanger-block 22 is prevented from turning independently of thecentral post 20 of the door by means of a set-screw 29, which enters agroove in the upper threaded portion of said post, and the block 24contains a Well 30, closed at .the top by a ring 3l, and containing asupply of oil which serves to lubricate the upper pivotal bearing of thepost, the quantity of oil contained in this well being sufficient tolubricate the pivot for a long period of time, so that renewals areinfrequent.

Hung to a bracket 32 on the truck 26 is an arm 3-3, on which islongitudinally adjustable a slide 34, carrying lugs or studs 35, Fig. 7,which when the post 20 is in its proper central position engage withopenings in the upper flanges of the girders 28, and thus lock the truckin such central position. The post 2O is, however, hollow, and passingdown through the same is a rod 36, which rests at its lower end upon thevertically-movable lower pivot 37 of the door. (See Fig. 4.) Hence whenthe latter is lifted by means of its lug 38, so as to free it from thecentral socket 39, the slide 34 and its lugs 35 will likewise be lifted,owing to the fact that the upper end of the rod 36 bears upon the arm33, as shown in Fig. 7, and the door structure will then be free to bemoved over to the side of the casing, as shown by dotted lines in Fig.2, it being understood that the swinging Wings 3 and 4 have first beenfolded against the fixed Wings l and 2. In order to permit this sidemovement, the ceiling 2l of the door-casing has a slot 40 for thepassage to and fro of the central post 2O of the door. A set-screw 4l,carried by a block 42 on the ceiling 2l, serves by contact with a lug 43on the under side of the truck 26 to limit the inward movement of thelatter when the post 2O of the door reaches its proper central position,the adjustment of the set-screw 4l providing for the necessary accuracyin this respect.

A socket 44 in the floor or Hoor-plate receives the lower pivot 37 ofthe door when the latter has been moved over to one side of' the casing,and thus serves to lock the door in such position.

Having thus described my invention, I claim and desire to secure byLetters Patentl. The combination of' xed wings of a revolvin g door, anintermediate swinging wing, a chain connected at its opposite ends tothe fixed win gs and passing over a bearing on the intermediate swingingWing, and means for locking the chain to said swinging wing when thelatter is extended, substantially as specified.

2. The combination of fixed wings of a revolving door structure, anintermediate swinging wing, a chain secured at its opposite ends to thefixed wings, and passing around a bearing on the intermediate swingingWing, said bearing being adjustable longitudinally to maintain the chainunder tension and means for locking the chain to said swinging Wing whenthe latter is extended, substantially as specified.

3. The combination of fixed wings of a rotating-door structure, anintermediate swinging wing, a chain connected to said fixed wings andpassing around a bearing on the swinging wing, and a trigger on saidswinging wing for engaging with a locking-lug on the chain when theswinging wing is projected, substantially as specified.

4. The combination of fixed wings of a rotating-door structure, anintermediate swinging wing, a chain connected at its ends to the fixedwings and passing around a bearing on the intermediate wing, and meansfor locking the chain to said swinging wing when the lat ter is extendedand means for taking up the slack of said chain as the swinging wing isfolded against a fixed wing, substantially as specified. p

5. The combination of the fixed wings of a lrotating-door structure, anintermediate swinging wing, a chain connected at its opposite ends tothe fixed wings and passing around a bearing on said intermediate wing,and means for locking the chain to said swinging wing when the latter isextended, and a swinging arm serving as a means of connecting one end ofthe chain to a fixed wing of the door, and when folded in against saidfixed wing taking up the slack of' the chain, substantially asspecified.

6. The combination ot' the revoluble structure of a rotating door, witha central post, a hanger-block secured to the upper end of said post,and having a conical recess in its lower end, and a conicalbearing-block upon which said han ger-block rests,substantially asspecified.

7. The combination of the revoluble structure of a rotating door, with acentral post carrying said revoluble structure, a hangerblock secured tothe upper end of said post, a bearing-block upon which said hanger-blockrests, and a support for said bearing-block containing an oil-receivingwell and having a ball-and-socket bearing upon its carrier,substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

THEOPHILUS VAN KANNEL.

Witnesses:

JOHN H. DAY, JAMES J. ETCHINGHAM.

